3.11

3.12

3.14

3.15

Diameter

Radius

Circumference

:)

Square the radius

add the radius

divide the radius

Not sure:((

multiplying the base by it self the number of times of the power

adding the base by it self the number of times of the power

subtracting base by it self the number of times of the power

Dividing the base by it self the number of times of the power

6

1

9

5

 $4\times4$  

 $4-4$  

 $4\div4$  

 $4+4$  

$18.84in^2$

$18.48in^2$

$28.62in^2$

$28.26in^2$

Adding

Subtracting

Multiplying

Dividing

Square

Add

Subtract

Divide

You add the radius by it self two times.

You subtract the radius by it self two times.

You multiply the radius by it self two times.

You divide the radius by it self two times.

 $45.54in^2$  

 $35.24in^2$  

 $50.24in^2$  

 $55.85in^2$  

$15cm^2$

$12cm^2$

$12.56cm^2$

$14.56cm^2$